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The Eucalyptus spectrograph

de Oliveira, A. C. and Barbuy, B. and Campos, R. P. and Castilho, B. V. and Gneiding, C. D. and Kanaan, A. and Lee, D. and Lepine, J. R. D. and de Oliveira, C. M. and de Oliveira, L. S. and Rodrigues, F. and Silva, J. M. and Strauss, C. and Taylor, K. (2003) The Eucalyptus spectrograph. In: Instrument Design and Performance for Optical/Infrared Ground-based Telescopes. Proceedings of SPIE. No.4841. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 1417-1428. ISBN 9780819446206.

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As part of the Brazilian contribution to the 4.2 m SOAR telescope project we are building the Integral Field Unit spectrograph, "SIFUS." With the aim of testing the performance of optical fibers with 50 microns core size on IFUs, we constructed a prototype of the IFU and a spectrograph that were installed at the 1.6 m telescope of the Observatorio do Pico dos Dias (OPD), managed by Laboratorio Nacional de Astrofisica (LNA) in Brazil. The IFU has 512 fibers coupled to a LIMO microlens array (16 x 32) covering a 15" x 30" field on the sky. The spectrograph is a medium resolution instrument, operating in a quasi-Littrow mode. It was based on the design of the SPIRAL spectrograph built by the Anglo-Australian Observatory. The name Eucalyptus was given following the name of the native Australian tree that adapted very well in Brazil and it was given in recognition to the collaboration with the colleagues of the Anglo-Australian Observatory. The instrument first light occurred in the first semester of 2001. The results confirmed the possibility of using the adopted fibers and construction techniques for the SIFUS. We present the features of the instrument, some examples of the scientific data obtained, and the status of the commissioning, calibration and automation plans. The efficiency of this IFU was determined to be 53% during telescope commissioning tests.

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Additional Information:© 2003 Society of Photo-optical Instrumentation Engineers (SPIE). This work was financially supported by the FAPESP project no. 1999/03744-1 and CNPq project 62.0053/01-1-PADCT III/Milenio. We wish like to thank the staff of the Anglo-Australian Observatory, Laboratório Nacional de Astrofísica and Instituto de Astronomia, Geofísica e Ciências Atmosféricas/USP.
Funding AgencyGrant Number
Fundação de Amparo à Pesquisa do Estado de Sao Paulo (FAPESP)1999/03744-1
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)62.0053/01-1-PADCT III/Milenio
Subject Keywords:spectrographs, optical instrumentation, optical fibers, IFU
Series Name:Proceedings of SPIE
Issue or Number:4841
Record Number:CaltechAUTHORS:20190118-160638575
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Official Citation:Antonio Cesar de Oliveira, Beatriz Barbuy, Rodrigo Prates Campos, Bruno Vas Castilho, Clemens Gneiding, Antonio Kanaan, David Lee, Jacques R. D. Lepine, Claudia Mendes de Oliveira, Ligia Souza de Oliveira, Francisco Rodrigues, J. M. Silva, C. Strauss, Keith Taylor, "The Eucalyptus spectrograph," Proc. SPIE 4841, Instrument Design and Performance for Optical/Infrared Ground-based Telescopes, (7 March 2003); doi: 10.1117/12.461975
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:92382
Deposited By: Tony Diaz
Deposited On:22 Jan 2019 05:22
Last Modified:16 Nov 2021 03:49

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